Origin
Turkey
Southern and central Africa
Color
Colorless, White, Yellow, Greenish, gray, Brown
Greenish, Blue, Colorless, Green, Yellow
Streak
White
Greenish, gray
For which Rashi?
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Planet
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Element of Planets
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Energy
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How to Wear?
Finger
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Ring Metal
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Deities
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Not to wear with
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Powers
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Birthstone
Planetary
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Talisman
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Tenacity
Very brittle
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Solubility
insoluble
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Durability
-
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Specific Gravity
3.30-3.403.17-3.24
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
{010} perfect, {110} distinct, {100} in traces
(0001) indistinct
Mohs Hardness
6.5-79-9.5
2
10
👆🏻
Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
SiCArthur Thomas , Gemstones (2009)
Luster
Pearly
Adamantine
Pleochroism
Strong
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Dispersion
0.010.10
0.005
1
👆🏻
Transparency
Transparent
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Refractive Index
1.702-1.7502.648-2.691
1
3.25
👆🏻
Optic Character
-
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Crystal System
Orthorhombic
6H polytype
Birefringence
0.0480.043
0
0.296
👆🏻
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Physical
Neurological
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Cardiovascular
Supports heart health
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Respiratory
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Reproductive
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Digestive
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Psychology
Transformation
Clarity
Healing
Emotional healing
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Qualities Associated
Change
Creativity